Difference between revisions of "Onopordum"
Sp. Pl. 2: 827. 1753.
Gen. Pl. ed. 5, 359. 1754.
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|distribution=Eurasia. | |distribution=Eurasia. | ||
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|discussion=<p>Species 25–60 (3 in the flora).</p> | |discussion=<p>Species 25–60 (3 in the flora).</p> | ||
|tables= | |tables= | ||
| − | |references= | + | |references={{Treatment/Reference |
| + | |id=dress1966a | ||
| + | |text=Dress, W. J. 1966. Notes on the cultivated Compositae 9. Onopordum. Baileya 14: 74–86. | ||
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|distribution=Eurasia. | |distribution=Eurasia. | ||
|introduced=true | |introduced=true | ||
| − | |reference= | + | |reference=dress1966a |
|publication title=Sp. Pl.;Gen. Pl. ed. | |publication title=Sp. Pl.;Gen. Pl. ed. | ||
|publication year=1753;1754 | |publication year=1753;1754 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_34.xml |
|tribe=Asteraceae tribe Cardueae | |tribe=Asteraceae tribe Cardueae | ||
|genus=Onopordum | |genus=Onopordum | ||
Latest revision as of 20:51, 5 November 2020
Biennials, 50–400+ cm, coarse, prickly. Stems usually erect, ± branched, spiny-winged. Leaves basal and cauline; winged-petiolate (basal) or sessile (cauline); blade bases narrowing, margins pinnately lobed or divided and dentate, teeth and lobes tipped with stout spines. Heads discoid, borne singly or in corymbiform arrays; (peduncles 0 or spiny winged). Involucres hemispheric to ovoid or spheric. Phyllaries many in 8–10+ series, linear to ovate, entire, tapered to stiff spines, middle and outer often spreading or reflexed. Receptacles flat to convex, epaleate, not bristly, alveolate with apically fringed pits. Florets many; corollas white or purple, actinomorphic or weakly zygmorphic, tubes slender, throats cylindric or narrowly goblet-shaped, lobes linear; anther bases acute-tailed, apical appendages subulate; style branches: fused portions with minutely hairy nodes, long, cylindric, minutely papillate, distinct portions minute. Cypselae ± cylindric, 4–5-angled, usually ± transversely roughened, glabrous, attachment scars basal; pappi falling in ring, of many barbed or plumose bristles, basally connate. x = 17.
Distribution
Introduced; Eurasia.
Discussion
Species 25–60 (3 in the flora).
Selected References
Lower Taxa
Key
| 1 | Herbage green, ± sticky-glandular | Onopordum tauricum |
| 1 | Herbage ± canescent-tomentose | > 2 |
| 2 | Leaves dentate to shallowly pinnatifid; phyllaries linear, bases 2–2.5 mm wide. | Onopordum acanthium |
| 2 | Leaves shallowly to ± deeply 1–2 pinnatifid; phyllaries lanceolate to ovate, bases 3–8 mm wide | Onopordum illyricum |